ITALIC 8.0

Opegrapha pertusariicola Coppins & P. James

Lichenologist, 11: 164 1979.

Synonyms:

Distribution: S - Si (Grillo & Cristaudo 1995, Brackel 2016).

Description: Thallus inapparent, not lichenized, the hyphae developing inside the thalli of Pertusaria-species, especially P. leioplaca, sometimes forming necrotic patches on the host thallus. Apothecia lirelliform, black, epruinose, simple or furcate, straight or slightly curved, 0.2-1 x 0.1-0.2 mm, with a slit-like disc (which sometimes is visible in the central parts of old apothecia) and a finely rugose proper margin. Proper exciple dark brown, 25-60 μm thick laterally, up to 115 μm thick at base, thinner and irregular below the hymenium, K+ green-black; epithecium brownish, K-; hymenium colourless to pale brown, 55-70 μm high, I+ blue in upper and lower parts, I+ reddish in the middle part; paraphysoids branched and anastomosing, 1.5-2 μm thick; hypothecium brown. Asci 4-spored, clavate, fissitunicate, without a K/I+ blue ring-structure in tholus, 48-60 x 12-18 μm. Ascospores (5-)6-septate, with an enlarged median cell, hyaline but sometimes turning brown when overmature, cylindrical, straight or slightly curved, 21-28(-31) x 4.5-6(-7) μm, with a 0.7-1 μm thick gelatinous perispore. Pycnidia immersed, brown-black. Conidia simple, hyaline, oblong-ellipsoid, often tapering towards one end, 3.3-4 x 0.8-1 μm. Photobiont absent. Spot tests: all negative. Chemistry: without lichen substances.

Note: a lichenicolous fungus growing on the thalli of Pertusaria-species, especially P. leioplaca, probably much more widespread.

Growth form: Lichenicolous fungus

Substrata: bark

Reproductive strategy: mainly sexual

paras Pertusaria spp.

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: very rare

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: very rare

Humid mediterranean belt: absent

Dry mediterranean belt: absent

pH of the substrata:

1

2

3

4

5

(info)

Solar irradiation:

1

2

3

4

5

(info)

Aridity:

1

2

3

4

5

(info)

Eutrophication:

1

2

3

4

5

(info)

Poleotolerance:

0

1

2

3

(info)

Altitudinal distribution:

1

2

3

4

5

6

(info)

Predictive model

INDEX FUNGORUM GBIF

Source: Westberg, M., Hammarström, O., Isaksson, R., Johansson, P., Thor, G., Vicente, R. & Svensson, M. 2023. Additions to the flora of lichenicolous fungi of Sweden. Graphis Scripta 35(2): 4–13. Oslo. ISSN 2002-4495. - CC BY-4.0

17 Aug. 2022, Vicente & Hammarström (UPS L-1047382). Scale bar = 0.5 mm

Lousiana State University - Source: https://cyberfloralouisiana.com/images/LSUCollections/Lichen/LSU/00/135/LSU00135637_5_WR.JPG

VEZDA Lich.Sel. Exs.1699